Dental prophylaxis cup



FIG. 1 is a perspective view of a dental prophylaxis cup showing my new design;

FIG. 2 is a side view thereof, the opposite side being a mirror image thereof;

FIG. 3 is a top perspective view thereof;

FIG. 4 is a perspective sectional view taken along lines 4--4 of FIG. 3;

FIG. 5 is bottom view thereof; and,

FIG. 6 is a side perspective thereof.

The broken-line showing of environmental structure in FIG. 6 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a dental prophylaxis cup, as shown and described. 